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3 years ago

Maria is reading a book that has 237 pages. She

Mathematics

2 answers:

Travka [436]3 years ago

4 0

Answer:

49 pages

237/3 = 79.

30+49 = 79

ladessa [460]3 years ago

3 0

So the answer is B because your are not suppose to do that.

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Which is the better buy? 2-yard piece of linen for $21.60 or a 2 foot piece of linen for $7.02

MissTica

Answer: 2 feet for $7.02.

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3 years ago

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HELP ASAP!! what is the measure of T? 125° 110° 100° 60°

harkovskaia [24]

Answer:

Step-by-step explanation:

The sum of angles in a quadrilateral is 360°.

  75° +125° +∠T +60° = 360°

  ∠T = 360° -260° = 100°

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3 years ago

What is the fewest number of points you must plot in order to have examples of all four sets of numbers, including at least one

Over [174]

Answer:

Let's define the sets:

Integers: The set of all whole numbers.

Rational: Numbers that can be written as the quotient of two integer numbers.

Natural: The set of the positive integers.

Whole numbers: All the numbers that can be made by adding (or subtracting) 1 a given number of times.

Then:

2 is a:

Whole number because 1 + 1 = 2 (then it is also a integer)

We can write 2 = 4/2

Then 2 is the quotient of two integer numbers, then it is rational.

2 is positive and is an integer, then it is a natural number.

Then number 2 is an example of all four sets.

If we also want to include a negative number, we can use -3

-3 is an integer, is a whole number, and 9/-3 = -3, then it is also a rational number.

Now, answering the questions:

a) We can use only one example for all four sets, but in this case i gave 2.

b) in the same way that i prove that 2, a positive integer, belongs to the four sets, we can do the same for every positive integer, then:

Positive integers belong to:

The set of integers.

The set of natural numbers.

The set of rational numbers.

The set of whole numbers.

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4 years ago

What is 19 percent of 50

Delvig [45]

Answer:

What is 19 percent (calculated percentage %) of number 50? Answer: 9.5.

Step-by-step explanation:

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3 years ago

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Sin97°cos43°+cos97°sin43°

kirza4 [7]

I added a screenshot with the head of the question

Answer:
sin (140°)

Explanation:
Angle addition formulas are used to express the trigonometric function in terms of the sum/difference between two angles α and β
These rules are shown in the attached image.

Now, the given expression is::
sin97°cos43°+cos97°sin43°We have:
α = 97°
β = 43°

Comparing the given formula with the general formulas in the image, we would find that the given formula represents the sum of the sin of two angles.

Therefore:
sin97°cos43°+cos97°sin43°
= sin (97°+43°)
= sin (140°)

Hope this helps :)

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3 years ago